This key Chain has a security whistle on one end and a secret compartment on the other.

The compartment is sized so you can fold up and hide a couple of bills.

Heartwood is light cream to yellowish brown, with occasional streaks of
gray or green. Sapwood is pale yellow to white, not always clearly
demarcated from the heartwood. Can also be seen in mineral stained
colors ranging from dark purple to red, green, or yellow, sometimes
referred to as Rainbow Poplar. Colors tend to darken upon exposure to
light.